Rib-knitting machine.



W, D. BUTZ.

RIB KNITTING MACHINE.

APPLICATION FILED MAY 8,1914.

Patented Dec. 8, 1914.

3 SHEETS-SHEET 1.

INVENTOR WALTER D. BUTZ BY- HIS ATTORNEY WH'NESSES WEW JWM.

W. D: BUTZ.

' RIB KNITTING MACHINE.

APPLICATION TILED MAY 8,1914. 1,120,44. Patented Dec. 8, 1914.

. 3 SHEETSSHEET 2.

I INVENTOR WALTER D.- BUTZ BY IS 'ATTiRNEY I I i I link car 'y'ing setscrews 12 one of the posts (3,

'jadjustment of these set screws the "can be moved in one direction oroNiTnn STATES PATENT FFIOE.

WALTER D. BUTZ,

OF NORBISTOWN, PENNSYLVANIA, ASSIGNOR TO PARAMOUNT KNITTING COMPANY, OFCHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

RIB-KNITTING MACHINE.

Application filed May 8, 1914.

To all whom it may concern:

Be it known that I, WALTER D. Bow, a citizen of the United States,residing in Norristown, Pennsylvanizn have invented certain Improvementsin Rib-Knitting Machines, of which. the following is a specification.

The object of my invention is to provide means for locking together theneedle cylinder and needle dial of a. rib knitting machine without theemployment of the usual engaging dogs on the inner side of the cyl inderand under side of the dial. This object I attain in the mannerhereinafter set forth, reference being had to the acco1n panyingdrawings, in which- Figure 1 is a view, partly in elevation and partlyin vertical transverse section of sullicient of a rib knitting machineto illustrate my invention; Fig. 2 is a plan or top view of the same;Fig. 3 is a horizontal section on the line b?), Fig. 1; Fig. "l is ahorizontal section on the line cu, Fig. 1, and Fig. 5 is a horizontalsection on the line dd, Fig. 1.

In the drawings, 1 represents part of the fixed base or bed of themachine. 2 a nonrotating needle cylinder secured thereto and 3 anon-rotating needle dial which is mounted upon) a spindle 4 dependingfrom an arch the latter being mounted upon studs 6 projecting upwardlyfrom a ring 7 to which rotating movement can be imparted by mechanismcommon in this class of machines, said ring also carrying a cylinder 8pro titled with cams for imparting reci procating motion to the needlesof the nccdle cylinder. A disk 9 which carries the cams tor inn'iartingreciprocating movement to the (llillllt'OtllOS is mounted so as to befree to rotate on the spindle at and is caused to rotate in unison withthe cam cylinder 8 by suitable connection between said disk and thisconnection, in the present instance consisting of a link 10 pivot; llyconnected to the disk 9, as shown in Fig. 3, and having in it anelongated slot 11 through which the/post (5 passes, the op posite endsof this sloticd portion of the bearing on oppost (3 so that by properdisk 9 the other so as to cause the cams thereof to reciprocate positesides of the Specification of Letters Patent.

Patented Dec. 8, 1914, Serial No. 837,160.

the dial needles in proper coordination with .the reciprocating cvlindernccdlcs.

jccting from said ring and having a roundor and slotted head 15 whichfits between llangcs lb on an adjusting screw 17, the lattcr beingadaptcd to a threaded opening in a lixed post 18 at one side of themachine and being provided with a suitable locking nut ll), as shown inFig. 2.- In order to lock the spindle -l to this fixed ring 13 I providea locking bolt 20 which can pass .l'reelv through a slot in the spindle,as shown in l igs. l, and 3, one or other or both ends of this lockingbolt engaging slots l in a ring 2; Figs 1, l and 5)) which ring islockrd to the lined ring 13, so as to permit of slight (ircuml'crcntial:nljustmrnt in re spcct thereto, by m ans of a pair of adjusting s rews23 adnplcd to threaded openings in the ring l3 and engaging with/thebases of recesses Jl l'orn'ied in the ring 29, as shown in l ig. l,projecting movement of one of these adjusting screws 23 accompanied bycorresponding retracting movement of the other of said screws J3 causingsuch circuml'crcntial movement of the ring 22, spindle 4., and dial 3 inrespect to the lixcd ring 13 as may be necessary to bring the needles oithe dial in proper alternating relation to the needles of the cylinder.lndcpendent rings .13 and 23 are not absolutely necessary for thispurpos as but a single ring 13 slotted lor the reception of the bolt 20and adjustable by the screw 17 might be used for this purpose, the useof the two rings however, providing for a double adjustment.

in order to provide a more extended hearing for the locking bolt 20 thanthat aflordcd by the spindle 4- alone, I surround said spindle with ahub 25 slotted for the ria-cption and guidance of the bolt, as shown in.l ig. l, and prevented l'rom rotating on the spindle l by means of aspline 26 which is titled to oppositely located grooves in the spiinllcand hub, as shown in Fig. l;

Secured to the rotating arch 5 by means of a set screw 27 is an arm'28which projects from a yarn guide 29, the latter havhas acted upon theright dial cam cap rotate,

ing an opening registering with an opening 29 in the arch 5. The yarnguide 29 is free to rotate in the space between he ring 22 and hub 25,as shown in Fig. 4, and serves to direct the yarn from a fixed guideabove the machine to the yarn guide 35 on the rotating dial cam plate 9.A cap plate 30 is mounted so as to be free to rotate upon the ring 22and a shouldered portion of the hub 25, as shown in Fig. 1, and servesto prevent access of dust, lint, to the parts below the same. Alsosecured to the rotating arch '5 by means of screws 31 is a cam 32 bestshown in F ig.'5, this cam acting first upon one end and then upon theopposite end of the locking bolt and serving to move the same first inone direction and then in the other, so as to carry said endsalternately into and out of the slots formed in the ring 22 for theirreception. As shown in Figs. 4 and 5, the high portionof the cam bolt 20to remove the same from the right hand slot 21 in the ring 22 and out ofthe path of the rotating yarn guide 29, the opposite or left hand end ofthe bolt being then in full engagement with the left hand slot 21 insaid ring 22, and as the cam and yarn guide rotate said cam will in turnact upon the-left hand end of the bolt 20 so as to tree the same fromthe left hand slot 21 and from the pathof the yarn guide 29 and at thesame time project its right hand end into the right hand slot 20, theextent of its reciprocating movement, and the formation of the cam 32being such that before one end of the bolt is freed from the slot 21with which it was in engagement the opposite end of the bolt will haveengaged the opposite slot 21, so that at no time willthe bolt 20beentirely free from the ring 22, the result being that the spindle at anddial 3 are at all times retained in fixed position.

In order to effect vertical adjustment of the needle dial in respecttothe needle cylinder the upper end of the spindle at is threaded for thereception of a nut 33 by adjustment of which the spindle can be raisedor lowered to the desired extent, the spline 26 permitting such raisingor lowering movement without corresponding rise or fall of the arch 5 orof the locking mechanism above the same. I

Although I have illustrated my invention as applied to that type of ribknitting machines in which the cylinder and dial are stationary and thecylinder cam ring and and although it has been designed especially foruse in a ma-' chine of this type, it can be used in connection with amachine of the reverse type, that is to say, one in which the needlecylinder and dial rotate and the cam cylinder and dialcam cap arenon-rotative, the only or other foreign matterhand end of the- 21, thelength of the bolt change necessary to be effected in this case beingthe removal of the yarn guide 29 from the arch 5, the securing of thering 13 to said arch, and the securing of the 'dial cam cap 9 to thestationary post 18 instead of to the post 6 of the rotating, drive ring7.

Although in my specification and claims I have alluded to the members 13and 22 as rings it will be evident that ring segments can be substitutedtherefor, if desired, without afiecting the operation of alternatelywith the slots in said" lateral reciprocation. of

the device, hence the term rings is to be con-- the bolt, said partsbeing so disposed that one end of the bolt will always be engaged withone of the ring slots before its opposite end is disengaged from theopposite s 0t.

2. The combination of the needle cylinder and dial of a rib knittingmachine, a; transversely slotted dial spindle, a ring surrounding thesame and having oppositely disposed slots therein, a bolt\reciprocatingthrough the slot in the spindle and adapted to engage alternately withthe slots in said ring to lock the dial spindle against rotary movementin either direction, a cam for causing such lateral reciprocation of thebolt, said parts being so disposed that one end of one of the ring slotsbefore its opposite end is disengaged from the opposite slot, and a hubsurrounding the spindle and secil'ied' thereto, said hub having thereinbolt guidthe bolt will always be engaged with ing slots registering withthe slot in'the spindle. I

3. The combination of the needlecylinder and dial of a rib knitting'machine, a

rounding the same and having 'oppositely disposed slots therein, a boltreciprocatin through the slot in the spindle and adapted to engagealternately with the-slots in said ring, a cam for causing such lateralrecipder and dial of a rib lmittingmachine, a

transversely slotted dial spindle, a ring surand means for transverselyslotted dial spindle, a ring surrounding the same and having-pppositelydisposed slots therein, a bolt reciprocatmg through the slot in thespindle and adapted to engage alternately with the slots in said ring tolock the dial spindle against rotary movement in either direction, a camfor causing such later-til reciprocation of the bolt, said parts beingso disposed that one end of the bolt will nlW-eys be engaged with one ofthe ring slots before its opposite end is disengaged from the oppositeslot, 11 ring surrounding said slotted locking ring, and

\VALTER D. BUTT W'itnesses KATE A. BEADLE, HAMILTON D. TURNER

